Industrial dust collection systems have a high risk of explosions because they can hold a high concentration of suspended combustible dust in a confined space. If oxygen is present and there is an ignition source an explosion can happen.
So how do you know if your dust is combustible and what to do if it is?
- Have a reputable 3rd party test your dust to determine a Kst value. Many testing agencies will have a simple, low cost option to first determine if the dust is combustible (Yes or No) – if test result is yes, you can then contract with them to provide a more in depth testing regimen to determine the actual values for Kst, PMax, MEC, MIE, etc.
- OSHA mandates that if your dust has a Kst greater than 0 then you have a combustible dust – according to NFPA 652 standard you must then perform a Dust Hazard Analyis (DHA) in order to determine the potential combustion risks for dust produced or handled in your facility. Note that the deadline for the completion of a DHA has been extended from October, 2018 to September 7, 2020.
- Consult with a reputable industrial air filtration specialist to determine the best course of action in mitigating your potential combustible dust application.
3B Air Systems can review your application and assist you in ensuring that your dust collection system(s) will comply with NFPA standards and ensuring that your facility is operating in a safe and responsible manner.